Category Archives: C Programs

C Programs

C Program to Check the Character is Lowercase or Uppercase Alphabet

C Program to Check Character is Lowercase or Uppercase Alphabet

In this tutorial, we will learn to create a C program that will Check the Character in Lowercase or Uppercase Alphabet in C programming.

Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
Conditional Statements in C programming.

What is a character?

The character is a single alphabetical entity in the English language and in any word. These letters can be both capital & small or uppercase & lowercase.

For Example:-

In the “Hello” word the there are five characters they are as follows

“H”
“e”
“l”
“l”
“o”

Here,

“H” is an uppercase letter.

“e” is a lowercase letter.

“l” is a lowercase letter.

“o” is a lowercase letter.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input character from the user.

3. Passing those variables to conditional statements.

4. Using those conditions to find the case of letter "uppercase" or "lowercase".

5. Printing the result.

6. End Program.

1. Declaring the variables for the program.

2. Taking the input character from the user.

3. Passing those variables to conditional statements.

4. Using those conditions to find the case of letter "uppercase" or "lowercase".

5. Printing the result.

6. End Program.

Program to Check the Character is Lowercase or Uppercase Alphabet

First, will take the character in input from the user. Then will pass that character in the conditional statements to find whether it is an upper case character or in lowercase.

With the help of this program, we can Check the Character in Lowercase or Uppercase Alphabet.

Program Code:-

/**
 * C program to <strong>Check the Character in Lowercase or Uppercase Alphabet</strong><strong>.</strong> 
 */

#include <stdio.h>

int main()
{
    /* declaring the variable required for the program. */
    char chr;

    /* Input character from user FOR THE PROGRAM*/
    printf("Enter any character: ");
    scanf("%c", &chr);

    /* CHECKING THE INPUT FROM THE USER CHARACTER IF ITS LOWER CASE  OR UPPER CASE */
    if(chr >= 'A' && chr <= 'Z')
    {
        //printing the output of the program as upper case.
        printf("'%c' is an upper case alphabet.", chr);
    }
    else if(chr >= 'a' && chr <= 'z')
    {
        //printing the output of the program as lower case.
        printf("'%c' is a lower case alphabet.", chr);
    }
    else
    {
        //printing the output of the program as not a character.
        printf("'%c' is not an alphabet.", chr);
    }

    return 0;
}

/**

* C program to Check the Character in Lowercase or Uppercase Alphabet.

#include <stdio.h>

int main()

{

/* declaring the variable required for the program. */

char chr;

/* Input character from user FOR THE PROGRAM*/

printf("Enter any character: ");

scanf("%c", &chr);

/* CHECKING THE INPUT FROM THE USER CHARACTER IF ITS LOWER CASE OR UPPER CASE */

if(chr >= 'A' && chr <= 'Z')

{

//printing the output of the program as upper case.

printf("'%c' is an upper case alphabet.", chr);

}

else if(chr >= 'a' && chr <= 'z')

{

//printing the output of the program as lower case.

printf("'%c' is a lower case alphabet.", chr);

}

else

{

//printing the output of the program as not a character.

printf("'%c' is not an alphabet.", chr);

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

chr = it will hold the character value for the input.

Input character from the user.

Finding the character is in upper case or lower case.

Printing output for the program.

C Program to Check Whether Character is Uppercase or Not

In this tutorial, we will learn to create a C program that will Check Whether Character is Uppercase or Not in C programming.

Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
Conditional Statements in C programming.

What is a character?

The character is a single alphabetical entity in the English language and in any word. These letters can be both capital & small or uppercase & lowercase.

For Example:-

In the “Hello” word the there are five characters they are as follows

“H”
“e”
“l”
“l”
“o”

Hence, “H” is a capital letter/ uppercase letter.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input character from the user.

3. Passing those variables to conditional statements.

4. Using those conditions to find the case of letter "uppercase" or "lowercase".

5. Printing the result.

6. End Program.

1. Declaring the variables for the program.

2. Taking the input character from the user.

3. Passing those variables to conditional statements.

4. Using those conditions to find the case of letter "uppercase" or "lowercase".

5. Printing the result.

6. End Program.

Program to Check Whether Character is Uppercase or Not

First, will take the character in input from the user. Then will pass that character in the conditional statements to find whether it is an upper case character or not.

With the help of this program, we can Check Whether the Character is Uppercase or Not.

Program Code:-

/**
 * C program to check whether a character is uppercase or NOT 
 */

#include <stdio.h>

int main()
{
    /* declaring the variable required for the program. */
    char chr;

    /* Input character from user FOR THE PROGRAM*/
    printf("Enter any character: ");
    scanf("%c", &chr);

    /* CHECKING THE INPUT FROM THE USER CHARACTER IF ITS UPPER OR LOWER CASE */
    if(chr >= 'A' && chr <= 'Z')
    {
        //printing the output of the program as upper case.
        printf("'%c' is uppercase alphabet.", chr);
    }
    else if(chr >= 'a' && chr <= 'z')
    {
        //printing the output of the program not a upper case.
        printf("'%c' is not uppercase alphabet.", chr);
    }
    else
    {
        //printing the output of the program as not a character.
        printf("'%c' is not an alphabet.", chr);
    }

    return 0;
}

/**

* C program to check whether a character is uppercase or NOT

#include <stdio.h>

int main()

{

/* declaring the variable required for the program. */

char chr;

/* Input character from user FOR THE PROGRAM*/

printf("Enter any character: ");

scanf("%c", &chr);

/* CHECKING THE INPUT FROM THE USER CHARACTER IF ITS UPPER OR LOWER CASE */

if(chr >= 'A' && chr <= 'Z')

{

//printing the output of the program as upper case.

printf("'%c' is uppercase alphabet.", chr);

}

else if(chr >= 'a' && chr <= 'z')

{

//printing the output of the program not a upper case.

printf("'%c' is not uppercase alphabet.", chr);

}

else

{

//printing the output of the program as not a character.

printf("'%c' is not an alphabet.", chr);

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

chr = it will hold the character value for the input.

Input character from the user.

Finding the character is in upper case or not.

Printing output for the program.

C Program to Find First Occurrence of a Word in a String

In this tutorial, we will learn to create a C program that will Find the First Occurrence of a Word in a String in C programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

What is a string?

As we all know the String is a collection of characters and words. The word is a collection of alphabets. For string, only one variable is declared which can store multiple values. The String can consist of all the typeable data it means Digits, Alphabets, Symbols, etc.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from user the word needs to be searched.

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from user the word needs to be searched.

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

Find the First Occurrence of a Word in a String

In this program first, we will take input string from the user. Then we will take the word to be searched from the user. Then will find the first occurrence of that word in that string. Printing the position of that word.

Let us take the example program from the below code to search for the first occurrence of that word.

Program:-

/* C Program to Find First Occurrence of a Word in a String */
 
#include <stdio.h>
 
int main()
{
    //declaring the required variables for the program
  	char str[100], word[100];
  	int i, j, Flag;
    
    //Taking input string from the user 
  	printf("\n Please Enter any String :  ");
  	gets(str);
  	//taking the input word to look into the string
	printf("\n Please Enter the Word that you want to Search for :  ");
  	gets(word);
	
	//Finding that word in the string
  	for(i = 0; str[i] != '\0'; i++)
	{
		if(str[i] == word[0])
		{
			Flag = 1;
			for(j = 0; word[j] != '\0'; j++)
			{
				if(str[i + j] != word[j])
				{
					Flag = 0;
					break;
				}
			}	
		}
		if(Flag == 1)
		{
			break;
		} 
	}
	if(Flag == 0)
  	{
  	    //printing the output result if not found.
  		printf("\n Sorry!! We haven't found the Word '%s' ", word);
	}
	else
	{
	    //printing the output result if found.
		printf("\n We found '%s' at position %d ", word, i + 1);
	}	
	
  	return 0;
}

/* C Program to Find First Occurrence of a Word in a String */

#include <stdio.h>

int main()

{

//declaring the required variables for the program

char str[100], word[100];

int i, j, Flag;

//Taking input string from the user

printf("\n Please Enter any String : ");

gets(str);

//taking the input word to look into the string

printf("\n Please Enter the Word that you want to Search for : ");

gets(word);

//Finding that word in the string

for(i = 0; str[i] != '\0'; i++)

{

if(str[i] == word[0])

{

Flag = 1;

for(j = 0; word[j] != '\0'; j++)

{

if(str[i + j] != word[j])

{

Flag = 0;

break;

}

if(Flag == 1)

{

break;

}

if(Flag == 0)

{

//printing the output result if not found.

printf("\n Sorry!! We haven't found the Word '%s' ", word);

}

else

{

//printing the output result if found.

printf("\n We found '%s' at position %d ", word, i + 1);

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

strg[100] = it will hold the string value.
word[100] = it will hold the string value.
j = it will hold the integer value.
i = it will hold the integer value.
flag = it will hold the integer value

Input string from the user for the program and Take the input Word from the user to search.

Searching the word in the string.

Printing output position of the word.

C Program to Find Last Occurrence of a Character in a String

In this tutorial, we will learn to create a C program that will Find the Last Occurrence of a Character in a String in C programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

What is a string?

As we all know the String is a collection of characters. In strings, only one variable is declared which can store multiple values. The String can consist of all the typeable data it means Digits, Alphabets, Symbols, etc. In this program, we will use strings.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from user the character needs to be searched.

4. Passing those variables to forloop.

5. Using conditional statements for the program to find the last occerence of character.

6. Printing the result position.

7. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from user the character needs to be searched.

4. Passing those variables to forloop.

5. Using conditional statements for the program to find the last occerence of character.

6. Printing the result position.

7. End the program.

Find Last Occurrence of a Character in a String

In this program first, we will take input string from the user. Then we will take the character to be searched from the user. Then will Find the last occurrence of that character in that string. Printing the position of that Character.

With the help of this program, we can Find the Last Occurrence of a Character in a String.

Program:-

/* C Program to find Last Occurrence of a Character in a String */
#include <stdio.h>
#include <string.h>
int main()
{
    //declaring the required variables for the program.
  	char strg[100], ch;
  	int i, indx;
  	indx = -1;
    //taking input string from the user for the program.
  	printf("\n Please Enter the String for the program :  ");
  	gets(strg);
  	//taking the character to be searched in a string.
  	printf("\n Please Enter the Character that you want to Search for :  ");
  	scanf("%c", &ch);
  	//Finding the character in the string.
  	for(i = 0; i <= strlen(strg); i++)
  	{
  		if(strg[i] == ch)  
		{
  			indx = i;
 		}
	}
    if(indx == -1)
  	{
  	    //Printing the result from the string
  		printf("\n Sorry!! We haven't found the the Search Element '%c' ", ch);
	}
	else
	{
	    //Printing the result from the string
	     printf("\n The Last Occurrence of the Search Element '%c'' at Position %d ", ch, indx + 1);
	}	
  	return 0;
}

/* C Program to find Last Occurrence of a Character in a String */

#include <stdio.h>

#include <string.h>

int main()

{

//declaring the required variables for the program.

char strg[100], ch;

int i, indx;

indx = -1;

//taking input string from the user for the program.

printf("\n Please Enter the String for the program : ");

gets(strg);

//taking the character to be searched in a string.

printf("\n Please Enter the Character that you want to Search for : ");

scanf("%c", &ch);

//Finding the character in the string.

for(i = 0; i <= strlen(strg); i++)

{

if(strg[i] == ch)

{

indx = i;

}

if(indx == -1)

{

//Printing the result from the string

printf("\n Sorry!! We haven't found the the Search Element '%c' ", ch);

}

else

{

//Printing the result from the string

printf("\n The Last Occurrence of the Search Element '%c'' at Position %d ", ch, indx + 1);

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

strg[100] = it will hold the string value.
ch = it will hold the character value.
indx = it will hold the integer value.
i = it will hold the integer value.

Input string from the user for the program and Take the input character from the user to search.

Searching the Character in the string.

Printing output position of the string.

C Program to Find First Occurrence of a Character in a String

In this tutorial, we will learn to create a C program that will Find the First Occurrence of a Character in a String in C programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

What is a string?

The String is a collection of characters and words. The word is a collection of alphabets. For string, only one variable is declared which can store multiple values. The String can consist of all the typeable data it means Digits, Alphabets, Symbols, etc. A character is any single entity that is used in combination to form a word.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from user the word needs to be searched.

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from user the word needs to be searched.

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

Find the First Occurrence of a Character in a String

In this program first, we will take input string from the user. Then we will take the Character to be searched from the user. Then will find the first occurrence of that Character in that string. Printing the position of that character.

Let us take the example program from the below code to search for the first occurrence of that Character.

Program:-

/* C Program to find First Occurrence of a Character in a String */
 
#include <stdio.h>
#include <string.h>
 
int main()
{
    //declaring the required vairables for teh program
  	char str[100], ch;
  	int i, Flag;
  	Flag = 0;
    //Taking input string from the user
  	printf("\n Please Enter any String :  ");
  	gets(str);
  	//taking the input character to look into the string
  	printf("\n Please Enter the Character that you want to Search for :  ");
  	scanf("%c", &ch);
  	//Searching the first occurrence of that number.
  	for(i = 0; i <= strlen(str); i++)
  	{
  		if(str[i] == ch)  
		{
  			Flag++;
			break;    	
 		}
	}
	
	//Printing the output position in the result of that string
    if(Flag == 0)
  	{
  		printf("\n Sorry!! We haven't found the Search Character '%c' ", ch);
	}
	else
	{
		printf("\n The First Occurrence of the Search Element '%c' is at Position %d ", ch, i + 1);
	}	
  	return 0;
}

/* C Program to find First Occurrence of a Character in a String */

#include <stdio.h>

#include <string.h>

int main()

{

//declaring the required vairables for teh program

char str[100], ch;

int i, Flag;

Flag = 0;

//Taking input string from the user

printf("\n Please Enter any String : ");

gets(str);

//taking the input character to look into the string

printf("\n Please Enter the Character that you want to Search for : ");

scanf("%c", &ch);

//Searching the first occurrence of that number.

for(i = 0; i <= strlen(str); i++)

{

if(str[i] == ch)

{

Flag++;

break;

}

//Printing the output position in the result of that string

if(Flag == 0)

{

printf("\n Sorry!! We haven't found the Search Character '%c' ", ch);

}

else

{

printf("\n The First Occurrence of the Search Element '%c' is at Position %d ", ch, i + 1);

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

strg[100] = it will hold the string value.
ch = it will hold the character value.
j = it will hold the integer value.
i = it will hold the integer value.
flag = it will hold the integer value

Input string from the user for the program and Take the input character from the user to search.

Searching the character in the string.

Printing output position of the character.

C Program to Count Total Number of Words in a String

C Program to Find First Occurrence of a Word in a String

In this tutorial, we will learn to create a C program that will Count Total Number of Words in a String in C programming

Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

What is a string?

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Passing those variables to for loop.

4. Using conditional statements to count the number of words in string.

6. Printing the result numbers.

7. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Passing those variables to for loop.

4. Using conditional statements to count the number of words in string.

6. Printing the result numbers.

7. End the program.

Count Total Number of Words in a String

In this program, first, we will take the input string from the user. Then we will count the word from the string entered by the user. Now to count, we will pass that string to a for loop for counting.

Let us take the example program from the below code to count words.

Program:-

/*
 * C Program to Count Number of Words in a String.
 */
#include <stdio.h>
#include <string.h>
 
void main()
{
    //declaring the required variables for the program.
    char s[200];
    int count = 0, i;
    //taking input string from the user for the program.
    printf("Enter the string:\n");
    //scanning the input string by the user.
    scanf("%[^\n]s", s);
    /*passing that string from the user to the for loop to count words.*/
    for (i = 0;s[i] != '\0';i++)
    {
        //increasing the value of count per word.
        if (s[i] == ' ' && s[i+1] != ' ')
            count++;    
    }
    //printing the number of words entered from the user.
    printf("Number of words in given string are: %d\n", count + 1);
}

* C Program to Count Number of Words in a String.

#include <stdio.h>

#include <string.h>

void main()

{

//declaring the required variables for the program.

char s[200];

int count = 0, i;

//taking input string from the user for the program.

printf("Enter the string:\n");

//scanning the input string by the user.

scanf("%[^\n]s", s);

/*passing that string from the user to the for loop to count words.*/

for (i = 0;s[i] != '\0';i++)

{

//increasing the value of count per word.

if (s[i] == ' ' && s[i+1] != ' ')

count++;

}

//printing the number of words entered from the user.

printf("Number of words in given string are: %d\n", count + 1);

}

Output:-

In the above program, we have first initialized the required variable.

s[200] = it will hold the string value.
i = it will hold the integer value.
Count = it will hold the integer value.

Input string from the user for the program.

Counting the word in the string.

Printing output number of the word.

C Program to Counting All Occurrence of a Character in a String

In this tutorial, we will learn to create a C program that will Find the First Occurrence of a Character in a String in C programming

Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

What is a string?

The String is a collection of characters and words. The word is a collection of alphabets. For string, only one variable is declared which can store multiple values. The String can consist of all the typeable data, it means Digits, Alphabets, Symbols, etc. A character is any single entity that is used in combination to form a word.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from the user, the word needs to be searched.

4. Passing those variables to for loop.

5. Using conditional statements for the program.

6. Counting All Occurrence of a Character in a String.

7. Printing the result position.

8. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Taking the input from the user, the word needs to be searched.

4. Passing those variables to for loop.

5. Using conditional statements for the program.

6. Counting All Occurrence of a Character in a String.

7. Printing the result position.

8. End the program.

Counting All Occurrence of a Character in a String

In this program, first, we will take the input string from the user. Then in the program, we will pass that string to a for loop and then will count all occurrences of a specific character in a String.

Let us take the example program from the below code for counting all occurrences of a Character in a String.

Program:-

/**
 * C Program to flaging All Occurrence of a Character in a String
 */

#include <stdio.h>
#define MAX_SIZE 100 // Maximum string size

int main()
{
    //Declaring the required variable for te program.
    char str[MAX_SIZE];
    char toSearch;
    int i, flag;

    /*Taking the Input string from user for program */
    printf("Enter any string: ");
    gets(str);
    //taking the searching character from the user
    printf("Enter any character to search: ");
    toSearch = getchar();
    
    //Searching that character in the string
    flag = 0;
    i=0;
    while(str[i] != '\0')
    {
        /*
         * If character is found in string then
         * increment flag variable
         */
        if(str[i] == toSearch)
        {
            flag++;
        }

        i++;
    }
    //printing the output numbers in the output section.
    printf("Total occurrence of '%c' = %d", toSearch, flag);

    return 0;
}

/**

* C Program to flaging All Occurrence of a Character in a String

#include <stdio.h>

#define MAX_SIZE 100 // Maximum string size

int main()

{

//Declaring the required variable for te program.

char str[MAX_SIZE];

char toSearch;

int i, flag;

/*Taking the Input string from user for program */

printf("Enter any string: ");

gets(str);

//taking the searching character from the user

printf("Enter any character to search: ");

toSearch = getchar();

//Searching that character in the string

flag = 0;

i=0;

while(str[i] != '\0')

{

* If character is found in string then

* increment flag variable

if(str[i] == toSearch)

{

flag++;

}

i++;

}

//printing the output numbers in the output section.

printf("Total occurrence of '%c' = %d", toSearch, flag);

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

str[MAX_SIZE] = it will hold the string value.
toSearch = it will hold the character value.
i = it will hold the integer value.
flag = it will hold the integer value

Input string from the user for the program and take the input character from the user to search.

Counting the character in the string.

Printing output counting of the character.

C Program to Count Vowels, and Consonants in a String

In this tutorial, we will learn to create a C program that will Count the Vowels and Consonants in a String in C programming

Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in c programming.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to program.

4. Passing those variables to for loop.

5. Using those numbers to be saved in variables and filter them with for loop.

6. Printing the result words.

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to program.

4. Passing those variables to for loop.

5. Using those numbers to be saved in variables and filter them with for loop.

6. Printing the result words.

Count the Vowels and Consonants in a String

As we all know, the String is a collection of all characters. In strings, only one variable is declared which can store multiple values. First, will take the line of string from the user. Then will filter the number of vowels and the consonants from that strings. At last, we will print the result numbers.

With the help of this program, we can Count the Vowels and Consonants in a String.

Program Code:-

#include <stdio.h>
#include <string.h>
 
int main()
{
    /* declaring the required variables for the program */
    char s[1000];  
    int i,vowels=0,consonants=0;
    
    /* Taking the input string from the user for the program */ 
    printf("Enter the string : ");
    gets(s);
    /* Filtering the vowels and the consonants from the string  */
    for(i=0;s[i];i++)  
    {
    	if((s[i]>=65 && s[i]<=90)|| (s[i]>=97 && s[i]<=122))
    	{
		
            if(s[i]=='a'|| s[i]=='e'||s[i]=='i'||s[i]=='o'||s[i]=='u'||s[i]=='A'||s[i]=='E'||s[i]=='I'||s[i]=='O' ||s[i]=='U')
		      vowels++;
            else
             consonants++;
        }
 
    }
    /* Printing the number of vowels in that string */
    printf("vowels = %d\n",vowels);
    /* Printing the number of consonants in that string */
    printf("consonants = %d\n",consonants);
    
    return 0;
}

#include <stdio.h>

#include <string.h>

int main()

{

/* declaring the required variables for the program */

char s[1000];

int i,vowels=0,consonants=0;

/* Taking the input string from the user for the program */

printf("Enter the string : ");

gets(s);

/* Filtering the vowels and the consonants from the string */

for(i=0;s[i];i++)

{

if((s[i]>=65 && s[i]<=90)|| (s[i]>=97 && s[i]<=122))

{

if(s[i]=='a'|| s[i]=='e'||s[i]=='i'||s[i]=='o'||s[i]=='u'||s[i]=='A'||s[i]=='E'||s[i]=='I'||s[i]=='O' ||s[i]=='U')

vowels++;

else

consonants++;

}

/* Printing the number of vowels in that string */

printf("vowels = %d\n",vowels);

/* Printing the number of consonants in that string */

printf("consonants = %d\n",consonants);

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

s[1000] = it will hold the string value.
Vowels = it will hold the integer value for vowels.
Consonant = it will hold the integer value for consonants.
i = it will hold the integer value.

Input strings from the user.

Filtering the vowels and the consonants from the string.

Printing output numbers of the vowels and the consonants.

C Program to Count Alphabets, Digits and Special Characters in a String

C Program to Count Alphabets, Digits, and Special Characters in a String

In this tutorial, we will learn to create a C program that will Count Alphabets, Digits, and Special Characters in a String in C programming

Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in c programming.

What is a string?

The String is a collection of characters and words. The word is a collection of alphabets. For string, only one variable is declared which can store multiple values. The String can consist of all the typeable data, it means Digits, Alphabets, Symbols, etc. A character is any single entity that is used in combination to form a word.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to program.

4. Passing those variables to for loop.

5. Using those conditions to count and filter them with for loop.

6. Printing the result words.

7. End Program.

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Adding the given sting to program.

4. Passing those variables to for loop.

5. Using those conditions to count and filter them with for loop.

6. Printing the result words.

7. End Program.

Count Alphabets, Digits, and Special Characters in a String

First, will take the line of string from the user. Then will count Alphabets, Digits, and Special Characters from that strings. At last, we will print the result numbers.

With the help of this program, we can Count Alphabets, Digits, and Special Characters in a String.

Program Code:-

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define str_size 100 //Declare the maximum size of the string
void main()
{
    //Declaring the variables for the program
    char str[str_size];
    int alps, di, splchar, i;
    alps = di = splchar = i = 0;
    //Taking the input string from the user for the counting
       printf("\n\nCount total number of alphabets, ditis and special characters :\n");
       printf("--------------------------------------------------------------------\n"); 	
       printf("Input the string : ");
       fgets(str, sizeof str, stdin);	
     /* Checking each character of string and counting */
    while(str[i]!='\0')
    {
        if((str[i]>='a' && str[i]<='z') || (str[i]>='A' && str[i]<='Z'))
        {
            alps++;
        }
        else if(str[i]>='0' && str[i]<='9')
        {
            di++;
        }
        else
        {
            splchar++;
        }
        i++;
    }
   /* Printing the ooutput countings */
    printf("Number of alphabets in the string is : %d\n", alps);
    printf("Number of ditis in the string is : %d\n", di);
    printf("Number of Special characters in the string is : %d\n\n", splchar);
}

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#define str_size 100 //Declare the maximum size of the string

void main()

{

//Declaring the variables for the program

char str[str_size];

int alps, di, splchar, i;

alps = di = splchar = i = 0;

//Taking the input string from the user for the counting

printf("\n\nCount total number of alphabets, ditis and special characters :\n");

printf("--------------------------------------------------------------------\n");

printf("Input the string : ");

fgets(str, sizeof str, stdin);

/* Checking each character of string and counting */

while(str[i]!='\0')

{

if((str[i]>='a' && str[i]<='z') || (str[i]>='A' && str[i]<='Z'))

{

alps++;

}

else if(str[i]>='0' && str[i]<='9')

{

di++;

}

else

{

splchar++;

}

i++;

}

/* Printing the ooutput countings */

printf("Number of alphabets in the string is : %d\n", alps);

printf("Number of ditis in the string is : %d\n", di);

printf("Number of Special characters in the string is : %d\n\n", splchar);

}

Output:-

In the above program, we have first initialized the required variable.

str[str_size] = it will hold the string value.
apls= it will hold the integer value for vowels.
di = it will hold the integer value for digits.
splchar = it will hold the integer value for special characters.
i = it will hold the integer value.

Input strings from the user.

Filtering the digits and the special character from the string.

Printing output numbers of the alphabets, the special characters, and the digits.

C Program to Find Frequency of each Character in a String

In this tutorial, we will learn to create a C program that will Find the frequency of each character in a String in C programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

What is the frequency of a string?

The frequency of a string means the number of occurrences of alphabets in the string. As we know the String is a collection of characters and words. The word is a collection of alphabets. For frequency, the letters are counted in the string individually and the result will show the statistics for the frequency.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Finding the size of string

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Finding the size of string

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

Find the Frequency of each Character in a String

In this program first, we will take input string from the user. Then will find the Frequency of each Character in a String in that string by counting the occurrence of each character. Printing the frequency of that character.

Let us take the example program from the below code to find the Frequency of each Character in a String.

Program:-

/* C Program to Find Frequency of each Character in a String */
 
#include <string.h>
 
int main()
{
    //declaring the required variables for the program 
    char s[1000];  
    int  i,j,k,flag=0,n;
  
    //Taking the input string from the user.
    printf("Enter  the string : ");
    gets(s);
    //finding the length of string
    for(j=0;s[j];j++);
	 n=j; 
    
	printf(" frequency count character in string:\n");
    //Finding the frequency of the characters
    for(i=0;i<n;i++)  
    {
     	flag=1;
    	if(s[i])
    	{
 		  for(j=i+1;j<n;j++)  
	      {   
	        if(s[i]==s[j])
    	    {
                 flag++;
                 s[j]='\0';
	     	}
	      }  
	      //Printing the frequency of the characters
	      printf(" '%c' = %d \n",s[i],flag);
       }
 	} 
    return 0;
}

/* C Program to Find Frequency of each Character in a String */

#include <string.h>

int main()

{

//declaring the required variables for the program

char s[1000];

int i,j,k,flag=0,n;

//Taking the input string from the user.

printf("Enter the string : ");

gets(s);

//finding the length of string

for(j=0;s[j];j++);

n=j;

printf(" frequency count character in string:\n");

//Finding the frequency of the characters

for(i=0;i<n;i++)

{

flag=1;

if(s[i])

{

for(j=i+1;j<n;j++)

{

if(s[i]==s[j])

{

flag++;

s[j]='\0';

}

//Printing the frequency of the characters

printf(" '%c' = %d \n",s[i],flag);

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

s[1000] = it will hold the string value.
j = it will hold the integer value.
i = it will hold the integer value.
k = it will hold the integer value.
flag = it will hold the integer value

Input string from the user for the program.

Finding the length of the string.

Finding the frequency in the characters in the string.

Printing output of the program.

C Program to find All Occurrence of a Character in a String

C Program to find All Occurrence of a Character in a String.

In this tutorial, we will learn to create a C program that will Find All the Occurrence of a Character in a String in C programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

What is the Occurrence of a string?

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Finding the size of string

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Finding the size of string

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the first occerence of word.

6. Printing the result position.

7. End the program.

Find All the Occurrence of a Character in a String

In this program first, we will take input string from the user. Then will find the Occurrence of each Character in a String in that string by counting the occurrence of each character. Printing the Occurrence of that character.

Let us take the example program from the below code to find the Occurrence of each Character in a String.

Program:-

/* C Program to Find <strong>Occurrence </strong>of each Character in a String */
 
#include <string.h>
 
int main()
{
    //declaring the required variables for the program 
    char s[1000];  
    int  i,j,k,flag=0,n;
  
    //Taking the input string from the user.
    printf("Enter  the string : ");
    gets(s);
    //finding the length of string
    for(j=0;s[j];j++);
	 n=j; 
    
	printf(" <strong>Occurrence </strong>count character in string:\n");
    //Finding the <strong>Occurrence </strong> of the characters
    for(i=0;i<n;i++)  
    {
     	flag=1;
    	if(s[i])
    	{
 		  for(j=i+1;j<n;j++)  
	      {   
	        if(s[i]==s[j])
    	    {
                 flag++;
                 s[j]='\0';
	     	}
	      }  
	      //Printing the <strong>Occurrence </strong>of the characters
	      printf(" '%c' = %d \n",s[i],flag);
       }
 	} 
    return 0;
}

/* C Program to Find Occurrence of each Character in a String */

#include <string.h>

int main()

{

//declaring the required variables for the program

char s[1000];

int i,j,k,flag=0,n;

//Taking the input string from the user.

printf("Enter the string : ");

gets(s);

//finding the length of string

for(j=0;s[j];j++);

n=j;

printf(" Occurrence count character in string:\n");

//Finding the Occurrence of the characters

for(i=0;i<n;i++)

{

flag=1;

if(s[i])

{

for(j=i+1;j<n;j++)

{

if(s[i]==s[j])

{

flag++;

s[j]='\0';

}

//Printing the Occurrence of the characters

printf(" '%c' = %d \n",s[i],flag);

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

s[1000] = it will hold the string value.
j = it will hold the integer value.
i = it will hold the integer value.
k = it will hold the integer value.
flag = it will hold the integer value

Input string from the user for the program.

Finding the length of the string.

Finding the Occurrence of the characters in the string.

Printing output Occurrence of the characters.

C Program to find Characters in a String

In this tutorial, we will learn to create a C program that will Find the Characters in a String in C programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
For loop in C programming.
Conditional Statements in C programming.

Character in a string:-

The finding of a character in a string means the number of occurrences of alphabets in the string. As we know the String is a collection of characters and words. The word is a collection of alphabets. For finding the characters, the letters are counted in the string individually and the result will show the statistics for the character.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Finding the size of string

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the character in the string.

6. Printing the result position.

7. End the program.

1. Declaring the variables for the program.

2. Taking the input string from the user.

3. Finding the size of string

4. Passing those variables to for loop.

5. Using conditional statements for the program to find the character in the string.

6. Printing the result position.

7. End the program.

Find the Character in a String:-

In this program first, we will take input string from the user. Then we will take the character to be searched from the user. Then will find the number of Characters in a String by counting the occurrence of that character. Printing the number of characters in that string.

Let us take the example program from the below code to find the Character in a String.

Program:-

/* C Program to Find Character in a String */
#include <stdio.h>
int main() 
{
    //Declaring the variable for the program 
    char str[1000], chr;
    int flag = 0;
    
    //Taking input sting from the user.
    printf("Enter a string: ");
    fgets(str, sizeof(str), stdin);
    
    //Taking the character in the input to find in the string.
    printf("Enter a character to find it in string: ");
    scanf("%c", &chr);
    
    //Finding the character in the string.
    for (int i = 0; str[i] != '\0'; ++i) 
    {
        if (chr == str[i])
            ++flag;
    }
    
    //Printing the output for the program.
    printf("Charaters in the word %c = %d", chr, flag);

    return 0;
}

/* C Program to Find Character in a String */

#include <stdio.h>

int main()

{

//Declaring the variable for the program

char str[1000], chr;

int flag = 0;

//Taking input sting from the user.

printf("Enter a string: ");

fgets(str, sizeof(str), stdin);

//Taking the character in the input to find in the string.

printf("Enter a character to find it in string: ");

scanf("%c", &chr);

//Finding the character in the string.

for (int i = 0; str[i] != '\0'; ++i)

{

if (chr == str[i])

++flag;

}

//Printing the output for the program.

printf("Charaters in the word %c = %d", chr, flag);

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

str[1000] = it will hold the string value.
chr = it will hold the string value.
flag = it will hold the integer value.

Input string from the user for the program.

Taking the input character from the user.

Finding the characters in the string.

Printing output number of the characters in the string.